* {
  margin: 0;
  padding: 0;
}
body {
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.conatiner {
  display: flex;
  justify-content: center;
  align-items: center;
}
.conatiner .circular {
  width: 30px;
  height: 30px;
  background-color: #e0e0e0;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all ease-in-out 0.5s;
}
.conatiner .circular .centerData {
  width: 23px;
  color: #999;
  height: 23px;
  border-radius: 50%;
  background-color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
}
.conatiner .line {
  width: 120px;
  height: 5px;
  background-color: #e0e0e0;
  transition: all ease-in-out 0.5s;
}
.conatiner .active {
  background-color: #3498db;
}
.buttons {
  display: flex;
  margin-top: 30px;
}
.buttons > div {
  width: 90px;
  height: 33px;
  border-radius: 10px;
  background-color: #3498db;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  font-size: 14px;
  margin: 0 20px;
  cursor: pointer;
}
.buttons .disable {
  background-color: #e0e0e0;
  cursor: not-allowed;
}
